Jotix sigwalt



(No Model.)

J. SIGWALT, Jr,

PRINTNG STAMP.

No. 399,089. Patented Mar. 5, 1889.

. I Hqtlmunzm 577 dh/LM, F23; MW d UNITED STATES PATENT @enten JOHN SKHVATI, JR., OF (-l'llCAGO, ILTilX'OlS.

PRlNTiNG-STAMP.

i SPECIFICATION forming part of Letters Patent No. 399,089, dated March 5, 1889.

u Application lil September 25, 1886i Serial No. 214,514. (No modehl.

To all 07mm it 11mg/ concern:

Be it known that I, JOHN SIGWALT, Jr., ot Chicago, county of Cook, State of Illinois, have invented certain new and useful lmproveniente in 'Prioting-Stamps, of which the iOlhDWng ie hereby deelared to be a full, clear, and exaet description, sutlieient to enable others .alcilled in the art to make -and use the The invention relates to printing-stamps wherein the inlepad is loeated in near relation to the lniniing-bed, so that ihe Stamp .may he alternately inked and broughi into i posit-ion for printing', as desired.

The invention relates more eepeeially to that Claes ot' stamps in which the die-plate iframe is positively retained Within limits, so as to be held in fixed relation after each shift above the printingbed or inlc-pad, as the ease maybe, and the improvements in construetion are designed to Secure, primarily, the Same movement back and forth in the use of the Stamp as is usual in the ordinary Stamp `carried freely in the hand ot' the operator and eaueed to deseend by him upon the pad and printing-bed alternately.

A further object ot the invention is to eure the aeeurate veriieal movement olf the stamp al'ter eaeh shift, so that it shall meet the pad or the bed squarely and evenly.

These objeets of invention are aeeonipliehed by the improvements in construction set iorth in the accompanying Specification, and pointed out rin the claims at the eonelusion thereof.

Figure l ie a view in perepeeiive, and Fig. 2 a view in longitudinal section, oi a printing-stamp embodying' my improvements,

Mounted in near relation to the printing` bed or surfaee A are the upright standards B, whieh, 'for eonvenienee, may be formed at the ends ot and in piece with the box or ease retaining the ink-pad C. The bottoni otl the 'hokY or ease raised above the tare ol the printing-bed, so that in printing a long' strip the Same may be fed or drawn freely past and beneath the bottom of the pad-ease to receive .the Successive impressione Without being,` impeded by suoli ease or box.

Pivoted to the standards B are the swinging' arms D, which at their opposite ends are,

journaled to the dieplate frame E, which latter is thus retained between the said swingingarms and may be earried baek and fortl'l thereby in position above the inlepad and the printing-bed, respectively. The dieplate trarne E is provided with the usual socket or bearingI to reeeive the reaetion- Springiand the vertieal plunger F, which earries at ite lower end. the die-plate G` A guide or pin, g, projeetingtrom the die-plato passes through an eye, d, oi;l the trame and ServesV to `align the die-plate during; its vertieal descent.,

To better ineure this desired position oi the die-plate, there are provided near eaeh end ol'l the dieplate trame E suitable rests or seats, e, ioeated on each side of the swivel-Connection between the Swinging arms D and the die-plate trame. These seats e Contact with Stops or reste l l and 2 2, lot-ated onA the Standards B, in position above the inlepad and the printing-bed, respectively. @Wing io the location ot such stops and reste, a firm even bearing' ie ai'i'orded for the die-plate trame at the end off its alteri'lating shift, in position over the ink-pad or printing-bed, as the ease may be, So that a square vertical Stroke of the die-plate against the ink-pad or the surface being,l printed may thereby be eer tainly insured.

It manieat that the eonetruetion of the rests or Stops may he varied, it' desired, and that either set of the rests l l or 2 2 may be omitted, although in praetiee the employment of both sets thereof is preferred,

For Convenience there may be shitting' guides 3 3, scoured to the printing-bed A, to

'govern the position ol' the Separate Sheets as the same are presented beneath the die-plate for printing.

I am Well aware that printingetampe have been heretofore Constructed in which a. dieplate ivae mounted between vertically-Siring ine' arms, Said plate being pivotally eonneeted with Said arms inr Sueh manner as io permit it to be pressed successively against the inkpad and the object to be printed; and I am also aivare that printing-stamps have been heretofore Constructed in which the die-plate was Carried upon the end of a plunger mounted upon a horiZontally-swinging arm, whereby the die-plate eould be brought eueeessively ICO over the inking-pad and printing-surface. In the tirst of these constructions, in which the die-plate was pivotally connected to the vertically-swinging arms, the die-plate was not carried by a vertical plunger susceptible of movement independent of the swinging arms, and no provision was made whereby the movement of the swinging arms could be arrested before the vertical downward movement of the die-plate was completed. lith the printing-stamps in which the die-plate was carried by a plunger mounted upon the end of a horizontally-swinging arm the inking of the dieplate and the printing operation could be properly effected; but this arrangement of the die-plate upon a horiZontally-swinging arm necessitated both a lateral and vertical movement of the operators hand at 'each opera-tion of inking and printing. By my present improved construction I attain all the advantages of the back-an l-orthmovement incident to stamps the die-plates of which are mounted upon vertically-swingi n g arms, and I also avoid the danger of uneven inking and printing heretofore encountered in this class of stamps by providing means whereby the movement of the vertically-swinging arms shall be arrested before the die-plate can strike the ink-pad or printing-surface and by mounting the die-plate in a suitable frame, so that its further movement after the swinging arms are arrested will be necessarybefore the type-face of the die-plate can be thrust against the inking-pad or object to be printed.

Having thus described the invention, What I claim as new, and desire to secure by Letters Patent, is

l. In a printing-stamp, the combination, with the die-plate, the vertical plunger carrying said die-plate, and the die-plate frame wherein said plunger is held ina manner free to move, of vertically-swinging arms whereby said die-plate frame is carried, standards in pivotal connection with the vertically-swinging arms, and stops or rests for sustaining the die-plate frame during the vertical downward movement of the plunger, substantially as described.

2. In a printing-stamp, the combination, with the die-plate and the Vertical plunger, of the pivoted die-plate frame E, having rests or seats e at each side of its pivotal points, the standards provided with stops Whereon said seats will bear, and vertically-swinging arms pivotally connected to the die plate frame and the standards, whereby during the vertical movement of the plunger the pivoted die-plate frame will be guarded against move- .ment about its pivot-bearings and in downward direction, substantially as described.

JOHN SIGVVALT, JR.

Vitnesses:

JAMES H. PEIRcE, GEORGE P. FIsHER, Jr. 

